BS ISO 7902-1:2020 pdf free.Hydrodynamic plain journal bearings under steady-state conditions一Circular cylindrical bearings Calculation procedure. BS ISO 7902-1 This document specifies a calculation procedure for oil-lubricated hydrodynamic plain bearings, with complete separation of the shaft and bearing sliding surfaces by a film of lubricant, used for designing plain bearings that are reliable in operation.It deals with circular cylindrical bearings having...